{% extends 'layout.html' %}

{% block content %}
{{ super() }}
{#这是注释#}
<ul>
    {% for foo in [1,2,3] %}
    <li>{{ foo }}</li>
    {% endfor %}
    {% for key,val in data.items() %}
    <li>{{ key }}:{{ val }}</li>
    {% endfor %}
</ul>
{% endblock %}